<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<script>
    /*
    +：求和
    -：求差
    *：求积
    /：求商
    %：取余
    */
    console.log(10 + 10)//20
    console.log(10 - 10)//0
    console.log(10 * 10)//100
    console.log(10 / 10)//1
    console.log(10 % 10)//0
</script>
</body>
</html>